needed for v.io/c/11752
needed for v.io/c/11752

- 11752 fixes the underlying name publisher to be asynchronous as
  per the original intent. This requires tests that probe for the
  presence of names in the mount table to retry.

MultiPart: 2/2

Change-Id: I746952cfbeb50b558347d0b772fbeabe7a5756ac

vanadium/chat,viksit/chat,viksit/chat,viksit/chat,viksit/chat,vanadium/chat,viksit/chat,vanadium/chat,vanadium/chat,vanadium/chat